<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<p style="color: red;">${errorInfo}</p>
<form action="${pageContext.request.contextPath}/login" method="post">
    usernmae :<input type="text" name="username" /> <p />
    password :<input type="password" name="password" /> <p />

    <input type="submit" value="登录" />
</form>

</body>
</html>